AS3822 TQFP32 DB

Series:	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Current - Output / Channel:	--
Moisture Sensitivity Level (MSL):	--
Outputs and Type:	8, Non-Isolated
Voltage - Output:	--
Features:	--
Voltage - Input:	4 V ~ 5.5 V
Supplied Contents:	Board(s)
Utilized IC / Part:	AS3822

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LED Drivers Introduction

LED drivers offer an effective way to control the brightness of LED lighting. They are necessary for reliable and efficient operation of LED lighting applications. LED drivers vary in complexity from simple one-off solutions to complex system-level solutions.

AS3822 TQFP32 DB: Overview

The AS3822 TQFP32 DB is an evaluation board for the AS3822, a family of single-channel, constant current LED driver ICs. These devices offer excellent efficiency and current accuracy for driving LEDs up to 100mA. The AS3822 TQFP32 DB simplifies design-in and evaluation of the AS3822, meant for efficiency improvement and longer LED life. The evaluation board has side by side placement of the AS3822 IC and external components. This helps in optimizing the overall board design.

AS3822 TQFP32 DB: Features

The AS3822 TQFP32 DB highlights the main features of the AS3822, namely:- Constant current output up to 100mA- Excellent current accuracy of ±3%- Adjustable output current range 0.1mA-100mA- Open LED protection- High efficiency (up to 95%)- Operation from 2.5V to 5.5V- Up to 4 channel independent open-drain PWM indicator output

AS3822 TQFP32 DB: Application Field

The AS3822 TQFP32 DB LED driver evaluation board was designed for applications in industrial and commercial LED lighting, such as stage lighting, shop and office lighting, automotive lighting, building lighting and decorative lighting.

AS3822 TQFP32 DB: Working Principle

The AS3822 TQFP32 DB LED driver evaluation board works according to the following principle. An external voltage is applied to the VIN pin, and an adjustable output current is generated by using slow-start auto-restart current limiting (SSL), with prevention of open LED short circuit protection. A fixed reference voltage is applied to the internal current control loop, where the output current is adjusted by a programmable resistor. An external voltage is applied to the PWM pin to select from four independent open-drain PWM indicator output levels.

Conclusion

The AS3822 TQFP32 DB evaluation board is a reliable and efficient choice for LED drivers. It boasts of excellent efficiency, current accuracy, adjustable output current range, open LED protection, and adjustable PWM indicator output. It is suitable for use in a variety of industrial and commercial applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description